Q: What sim cards is compatible with my iPad 3

Hey weslin1996,

The following information details using the iPad's cellular service around the world:

iYou can sign up for cellular connectivity only when you need it. Some cellular carriers even offer flexible shared plans that let you use the data service you already have. If you want a local connection when you’re traveling, iPad Air is ready. Just ask a local carrier about a short-term data plan, pop in a SIM card, and you’re ready to go.

 

from: http://www.apple.com/ipad-air/ultrafast-wireless/

To see what type of SIM your iPad uses, check out this article:

iPhone and iPad: Understanding which SIM card your iPhone or iPad uses

http://support.apple.com/kb/HT5554

Welcome to Apple Support Communities!

Have a good one,

Delgadoh